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Skin Cancer, Melanoma - Exams and Tests
SYMPTOMS & TREATMENTS
- Topic Overview
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Health Tools
- Cause
- Symptoms
- What Happens
- What Increases Your Risk
- When To Call a Doctor
- Exams and Tests
- Treatment Overview
- Prevention
- Home Treatment
- Medications
- Surgery
- Other Treatment
- Other Places To Get Help
- Related Information
- References
- Credits
Evaluation of a skin lesion
A physical exam of the skin is used to evaluate the skin for melanoma. If melanoma is suspected, a skin biopsy will be done. For this, your doctor will remove a sample of skin tissue and send it to a pathologist to be looked at under a microscope. If the biopsy shows melanoma, the pathologist will measure the thickness of the melanoma to find out how advanced the cancer is.
Other techniques may include total-body photography to monitor for changes in any mole and to watch for new moles appearing in normal skin. A series of photos of the suspicious lesions may be taken. Then the photos can be used as a baseline to compare with follow-up photos.
Evaluation of lymph nodes
Your doctor will do a physical exam that includes checking the lymph nodes to see whether they are larger than normal. This may be followed by a sentinel lymph node biopsy to see whether the melanoma has spread to the lymph system.
Evaluation for possible metastases (spread of cancer)
A complete medical history and a physical exam are needed to find out whether the cancer has spread (metastasized) to other parts of the body. Imaging tests, including positron emission tomography (PET scan), computed tomography (CT scan), or magnetic resonance imaging (MRI), may be used to identify metastases in other parts of the body, such as the lungs, brain, liver, or other organs.
Early Detection
Skin self-exam is a good way to detect early skin changes that may point to melanoma. A skin self-exam is used to find suspicious growths that may be cancer or growths that may develop into skin cancer (precancers). Adults should examine their skin once every month. Look for any abnormal skin growth or any change in the color, shape, size, or appearance of a skin growth. Check for any area of injured skin (lesion) that does not heal. Have your spouse or someone such as a close friend help you monitor your skin, especially places that are hard to see such as your scalp and back.
There are other steps you can take to prevent skin cancer or detect it at an early stage.
- Be aware of the risk of skin cancer and the steps you can take to prevent it, including staying out of the midday sun, wearing protective clothing, and using sunscreen on exposed skin.
- Have your doctor examine
any suspicious skin changes. He or she may check your skin once a year. Or your doctor may suggest a skin exam more often, especially if you have:
- Familial atypical mole and melanoma (FAM-M) syndrome, which is an inherited tendency to develop melanoma. Examine your skin every month and be examined by a doctor every 4 to 6 months, preferably by the same doctor each time.
- Increased exposure to ultraviolet (UV) radiation because of your job, hobbies, or outdoor activities.
- Abnormal moles called atypical moles (dysplastic nevi). These moles are not cancerous. But their presence is a warning of an inherited tendency to develop melanoma.
| By: | Healthwise Staff | Last Revised: February 8, 2011 |
| Medical Review: | Kathleen Romito, MD - Family Medicine Alexander H. Murray, MD, FRCPC - Dermatology | |
© 1995-2011 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.
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